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请教高手5 }# }5 S/ a$ B+ Q' C, ]
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IEC/EN61010-1:2010 对跨接初级与次级Y电容有什么要求。% j4 y/ g) b& J* B! I
现有:
! G, j! |# }9 ACY1电容器跨接在初次级上,满足加强绝缘距离要求。
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; S) M% `! u8 T& H认证公司要求:$ A1 Z- Z- g% \7 c- ~
1. CY1电容耐压值应该更换为500V
) z4 Q% [. y* {: @2. 或者采用两个CY2串联
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; `5 K% s! Y1 ~2 V- ]目的:因为EN61010-1标准要求CY1必须要有2倍工作电压的耐压值2 G! ^/ c0 S& w5 x. D1 p) Q. R
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1. 我想知道他们所说的耐压值什么意思?
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, x1 b6 W4 Z6 j: z; C* Z2. IEC/EN61010-1:2010 是说的这个意思?
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下文为标准:
0 c2 K! n# n6 u( C: ~5 s6.5.4 PROTECTIVE IMPEDANCE3 ~/ ` y0 `$ s. a3 ~
A PROTECTIVE IMPEDANCE shall limit the current or voltage to the levels of 6.3.1 in NORMAL
! i# J& d& C3 I( R* V$ [CONDITION and 6.3.2 in SINGLE FAULT CONDITION.6 z, W4 s }" P( z; h
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Insulation between the terminations of the PROTECTIVE IMPEDANCE shall meet the requirements4 J( L6 }4 P" ~
of 6.7 for DOUBLE INSULATION or REINFORCED INSULATION.9 u/ O% B+ _" y" _
- Z0 o1 Q. i2 d6 D9 X( K% yA PROTECTIVE IMPEDANCE shall be one or more of the following:
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$ E7 P9 A4 {# k- V7 t$ Z1 W1 Va) an appropriate single component which shall be constructed, selected and tested so that safety and reliability for protection against electric shock is assured. In particular, the component shall be:6 G0 Y" q" z9 z/ a
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1) RATED for twice the maximum WORKING VOLTAGE;% f) K( x- z6 N% s
8 Y' t7 z/ r; G. s8 W% w; V6 L3 H* Z2) if a resistor, RATED for twice the power dissipation for the maximum WORKING VOLTAGE.
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b) a combination of components.8 |/ I: [3 L! S- k3 T6 ?
A PROTECTIVE IMPEDANCE shall not be a single electronic device that employs electron
$ ? J6 p# o2 Q, Pconduction in a vacuum, gas or semiconductor, N' \ Y2 Z$ z" z/ z
Conformity is checked by inspection, by measuring the current or voltage to confirm that they# W6 {' R$ Y [8 k, V4 V
do not exceed the applicable levels of 6.3 and by measuring CLEARANCES and CREEPAGE8 |4 D$ }# A) e& K
DISTANCES as specified in 6.7. Conformity of a single component is checked by inspection of% j1 z( Z6 S/ w! Y9 }' K
its RATINGS. |
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